{"product_id":"optolong-kit-l-rgb-36mm-lrgb-36-n-a","title":"Optolong LRGB Filter Set 36mm – Astrophotography","description":"\u003ch2\u003eOptolong LRGB Filter Set 36mm – Complete Set for Color Astrophotography\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eOptolong LRGB filter set 36mm\u003c\/strong\u003e includes four filters – Luminance (L), Red (R), Green (G) and Blue (B) – in 36mm unmounted format for filter wheels and mono CCD\/CMOS cameras. Each filter is made on a Schott substrate with multi-layer ion-assisted coating for maximum transmission and color stability.\u003c\/p\u003e\n\u003cp\u003eThe spectral separation is optimized for \u003cstrong\u003emaximum color contrast\u003c\/strong\u003e: OIII emissions overlap with B and G channels for natural colors, the Na line at 589nm is blocked between G and R. The \u003cstrong\u003eL channel\u003c\/strong\u003e covers the entire visible spectrum for maximum resolution. Passband transmission over \u003cstrong\u003e95%\u003c\/strong\u003e on all channels.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eContents\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e4 filters: L + R + G + B\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eFormat\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e36mm (unmounted)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003ePassband transmission\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e95%\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIR blocking\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e700–1100nm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eSubstrate\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003eSchott, 2.0mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eSurface quality\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e60\/40 (MIL-O-13830)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eWavefront flatness\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e1\/4λ\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eParallelism\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003e\u0026lt;30\u0026quot;\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eCoating\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003eMulti-layer, ion-assisted\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eRecommended cameras\u003c\/strong\u003e\u003c\/td\u003e\u003ctd\u003eCCD\/CMOS mono\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Optolong","offers":[{"title":"Default Title","offer_id":51261289398603,"sku":"OPLRGB-36","price":239.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0886\/1981\/1147\/files\/kit-filtri-lrgb-optolong-36mm-contrasto-elevato-colori-luce.jpg?v=1744222374","url":"https:\/\/adriasky.it\/en\/products\/optolong-lrgb-filter-set-36mm","provider":"Adriasky","version":"1.0","type":"link"}